The UFC has added a potential contender to the heavyweight roster.

Former World Series of Fighting (now Professional Fighters League) champion Blagoy Ivanovhas signed with the UFC, sources confirmed with MMA Fighting’s Ariel Helwani. He is expected to debut this summer after amicably parting ways with the PFL.

Ivanov (16-1, 1 NC) is currently on a five-fight winning streak, having captured a title at WSOF 21 back in May 2015 with a submission of Smealinho Rama and going on to successfully defend it four consecutive times (once under the PFL banner). Prior to that, Ivanov’s only loss was to current UFC heavyweight contender Alexander Volkov in the finals of a Bellator tournament.

The 31-year-old hails from Bulgaria and holds wins over UFC vets Shawn Jordan, Lavar Johnson, and Ricco Rodriguez.